1 /* 2 * Copyright (C) 2011 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef MediaPlayerPrivateAVFoundation_h 27 #define MediaPlayerPrivateAVFoundation_h 28 29 #if ENABLE(VIDEO) && USE(AVFOUNDATION) 30 31 #include "FloatSize.h" 32 #include "MediaPlayerPrivate.h" 33 #include "Timer.h" 34 #include <wtf/RetainPtr.h> 35 36 namespace WebCore { 37 38 class ApplicationCacheResource; 39 40 class MediaPlayerPrivateAVFoundation : public MediaPlayerPrivateInterface { 41 public: 42 43 virtual void repaint(); 44 virtual void metadataLoaded(); 45 virtual void loadStateChanged(); 46 virtual void playabilityKnown(); 47 virtual void rateChanged(); 48 virtual void loadedTimeRangesChanged(); 49 virtual void seekableTimeRangesChanged(); 50 virtual void timeChanged(double); 51 virtual void seekCompleted(bool); 52 virtual void didEnd(); 53 54 class Notification { 55 public: 56 enum Type { 57 None, 58 ItemDidPlayToEndTime, 59 ItemTracksChanged, 60 ItemStatusChanged, 61 ItemSeekableTimeRangesChanged, 62 ItemLoadedTimeRangesChanged, 63 ItemPresentationSizeChanged, 64 ItemIsPlaybackLikelyToKeepUpChanged, 65 ItemIsPlaybackBufferEmptyChanged, 66 ItemIsPlaybackBufferFullChanged, 67 AssetMetadataLoaded, 68 AssetPlayabilityKnown, 69 PlayerRateChanged, 70 PlayerTimeChanged, 71 SeekCompleted, 72 }; 73 Notification()74 Notification() 75 : m_type(None) 76 , m_time(0) 77 , m_finished(false) 78 { 79 } 80 Notification(Type type,double time)81 Notification(Type type, double time) 82 : m_type(type) 83 , m_time(time) 84 , m_finished(false) 85 { 86 } 87 Notification(Type type,bool finished)88 Notification(Type type, bool finished) 89 : m_type(type) 90 , m_time(0) 91 , m_finished(finished) 92 { 93 } 94 type()95 Type type() { return m_type; } isValid()96 bool isValid() { return m_type != None; } time()97 double time() { return m_time; } finished()98 bool finished() { return m_finished; } 99 100 private: 101 Type m_type; 102 double m_time; 103 bool m_finished; 104 }; 105 106 void scheduleMainThreadNotification(Notification); 107 void scheduleMainThreadNotification(Notification::Type, double time = 0); 108 void scheduleMainThreadNotification(Notification::Type, bool completed); 109 void dispatchNotification(); 110 void clearMainThreadPendingFlag(); 111 112 protected: 113 MediaPlayerPrivateAVFoundation(MediaPlayer*); 114 virtual ~MediaPlayerPrivateAVFoundation(); 115 116 // MediaPlayerPrivatePrivateInterface overrides. 117 virtual void load(const String& url); 118 virtual void cancelLoad() = 0; 119 120 virtual void prepareToPlay(); 121 virtual PlatformMedia platformMedia() const = 0; 122 123 virtual void play(); 124 virtual void pause(); 125 126 virtual IntSize naturalSize() const; hasVideo()127 virtual bool hasVideo() const { return m_cachedHasVideo; } hasAudio()128 virtual bool hasAudio() const { return m_cachedHasAudio; } 129 virtual void setVisible(bool); 130 virtual float duration() const; 131 virtual float currentTime() const = 0; 132 virtual void seek(float); 133 virtual bool seeking() const; 134 virtual void setRate(float); 135 virtual bool paused() const; 136 virtual void setVolume(float) = 0; hasClosedCaptions()137 virtual bool hasClosedCaptions() const { return m_cachedHasCaptions; } 138 virtual void setClosedCaptionsVisible(bool) = 0; networkState()139 virtual MediaPlayer::NetworkState networkState() const { return m_networkState; } readyState()140 virtual MediaPlayer::ReadyState readyState() const { return m_readyState; } 141 virtual float maxTimeSeekable() const; 142 virtual PassRefPtr<TimeRanges> buffered() const; 143 virtual unsigned bytesLoaded() const; 144 virtual void setSize(const IntSize&); 145 virtual void paint(GraphicsContext*, const IntRect&); 146 virtual void paintCurrentFrameInContext(GraphicsContext*, const IntRect&) = 0; 147 virtual void setPreload(MediaPlayer::Preload); 148 virtual bool hasAvailableVideoFrame() const; 149 #if USE(ACCELERATED_COMPOSITING) platformLayer()150 virtual PlatformLayer* platformLayer() const { return 0; } 151 virtual bool supportsAcceleratedRendering() const = 0; 152 virtual void acceleratedRenderingStateChanged(); 153 #endif hasSingleSecurityOrigin()154 virtual bool hasSingleSecurityOrigin() const { return true; } 155 virtual MediaPlayer::MovieLoadType movieLoadType() const; 156 virtual void prepareForRendering(); 157 virtual float mediaTimeForTimeValue(float) const = 0; 158 159 virtual bool supportsFullscreen() const; 160 161 // Required interfaces for concrete derived classes. 162 virtual void createAVPlayerForURL(const String& url) = 0; 163 #if ENABLE(OFFLINE_WEB_APPLICATIONS) 164 virtual void createAVPlayerForCacheResource(ApplicationCacheResource*) = 0; 165 #endif 166 167 enum ItemStatus { 168 MediaPlayerAVPlayerItemStatusUnknown, 169 MediaPlayerAVPlayerItemStatusFailed, 170 MediaPlayerAVPlayerItemStatusReadyToPlay, 171 MediaPlayerAVPlayerItemStatusPlaybackBufferEmpty, 172 MediaPlayerAVPlayerItemStatusPlaybackBufferFull, 173 MediaPlayerAVPlayerItemStatusPlaybackLikelyToKeepUp, 174 }; 175 virtual ItemStatus playerItemStatus() const = 0; 176 177 enum AVAssetStatus { 178 MediaPlayerAVAssetStatusUnknown, 179 MediaPlayerAVAssetStatusLoading, 180 MediaPlayerAVAssetStatusFailed, 181 MediaPlayerAVAssetStatusCancelled, 182 MediaPlayerAVAssetStatusLoaded, 183 MediaPlayerAVAssetStatusPlayable, 184 }; 185 virtual AVAssetStatus assetStatus() const = 0; 186 187 virtual void platformPlay() = 0; 188 virtual void platformPause() = 0; 189 virtual void checkPlayability() = 0; 190 virtual void updateRate() = 0; 191 virtual float rate() const = 0; 192 virtual void seekToTime(float time) = 0; 193 virtual unsigned totalBytes() const = 0; 194 virtual PassRefPtr<TimeRanges> platformBufferedTimeRanges() const = 0; 195 virtual float platformMaxTimeSeekable() const = 0; 196 virtual float platformMaxTimeLoaded() const = 0; 197 virtual float platformDuration() const = 0; 198 199 virtual void beginLoadingMetadata() = 0; 200 virtual void tracksChanged() = 0; 201 virtual void sizeChanged() = 0; 202 203 virtual void createContextVideoRenderer() = 0; 204 virtual void destroyContextVideoRenderer() = 0; 205 206 virtual void createVideoLayer() = 0; 207 virtual void destroyVideoLayer() = 0; 208 virtual bool videoLayerIsReadyToDisplay() const = 0; 209 210 virtual bool hasContextRenderer() const = 0; 211 virtual bool hasLayerRenderer() const = 0; 212 213 protected: 214 void resumeLoad(); 215 void updateStates(); 216 setHasVideo(bool b)217 void setHasVideo(bool b) { m_cachedHasVideo = b; }; setHasAudio(bool b)218 void setHasAudio(bool b) { m_cachedHasAudio = b; } setHasClosedCaptions(bool b)219 void setHasClosedCaptions(bool b) { m_cachedHasCaptions = b; } 220 void setDelayCallbacks(bool); setIgnoreLoadStateChanges(bool delay)221 void setIgnoreLoadStateChanges(bool delay) { m_ignoreLoadStateChanges = delay; } 222 void setNaturalSize(IntSize); 223 224 enum MediaRenderingMode { MediaRenderingNone, MediaRenderingToContext, MediaRenderingToLayer }; 225 MediaRenderingMode currentRenderingMode() const; 226 MediaRenderingMode preferredRenderingMode() const; 227 metaDataAvailable()228 bool metaDataAvailable() const { return m_readyState >= MediaPlayer::HaveMetadata; } requestedRate()229 float requestedRate() const { return m_requestedRate; } 230 float maxTimeLoaded() const; 231 bool isReadyForVideoSetup() const; 232 virtual void setUpVideoRendering(); 233 virtual void tearDownVideoRendering(); 234 bool hasSetUpVideoRendering() const; 235 236 static void mainThreadCallback(void*); 237 238 private: 239 240 MediaPlayer* m_player; 241 242 Vector<Notification> m_queuedNotifications; 243 Mutex m_queueMutex; 244 bool m_mainThreadCallPending; 245 246 mutable RefPtr<TimeRanges> m_cachedLoadedTimeRanges; 247 248 MediaPlayer::NetworkState m_networkState; 249 MediaPlayer::ReadyState m_readyState; 250 251 String m_assetURL; 252 MediaPlayer::Preload m_preload; 253 FloatSize m_scaleFactor; 254 255 IntSize m_cachedNaturalSize; 256 mutable float m_cachedMaxTimeLoaded; 257 mutable float m_cachedMaxTimeSeekable; 258 mutable float m_cachedDuration; 259 float m_reportedDuration; 260 261 float m_seekTo; 262 float m_requestedRate; 263 int m_delayCallbacks; 264 bool m_havePreparedToPlay; 265 bool m_assetIsPlayable; 266 bool m_visible; 267 bool m_videoFrameHasDrawn; 268 bool m_loadingMetadata; 269 bool m_delayingLoad; 270 bool m_isAllowedToRender; 271 bool m_cachedHasAudio; 272 bool m_cachedHasVideo; 273 bool m_cachedHasCaptions; 274 bool m_ignoreLoadStateChanges; 275 bool m_haveReportedFirstVideoFrame; 276 bool m_playWhenFramesAvailable; 277 }; 278 279 } 280 281 #endif 282 #endif 283